Network (ASN)

AS8220

first seen 2026-06-26 11:21 · last seen 2026-08-29 21:41 · JSON

Decomposed attributes

Network nameCOLT Technology Services Group Limited
Domaincolt.net

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
q13d0311h3_55b375c5d22e_653d80c3fe9d Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 149.0.7827.102, +56 more.The fingerprint page shows the full measured match list. More on the catalog.11
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.5
q13d0314h3_55b375c5d22e_61e396c58b1f Match?Exact match in Thumbprint's published controlled catalog captures: firefox 132.0, firefox-esr 140.11.0esr, firefox-esr 140.16.0esr, +12 more.The fingerprint page shows the full measured match list. More on the catalog.3
t13d1617h2_86a278354501_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog.3
q13d0315h3_55b375c5d22e_dc5437974b47 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +27 more.The fingerprint page shows the full measured match list. More on the catalog.2
t13d3013h2_1d37bd780c83_8537cf56674e Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1716h2_5b57614c22b0_0c27189014cf Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1515h1_8daaf6152771_de4a06bb82e31

HTTP request (JA4H)

fingerprintco-occurrences
ge30nr13it00_0c2c1d640f3e_000000000000_0000000000003
ge20nr110000_dff93ddcf3c8_000000000000_0000000000002
ge30nr12it00_54b4638ab28b_000000000000_0000000000002
ge20nr12it00_54b4638ab28b_000000000000_0000000000002
ge20nr120000_3b263d8a4b60_000000000000_0000000000001
ge30nr100000_0d4f1bde28df_000000000000_0000000000001
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.13.0, +11 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +61 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge30nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +61 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge30nr10enus_9fcbd3f1e2d6_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +85 more.The fingerprint page shows the full measured match list. More on the catalog.4
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +32 more.The fingerprint page shows the full measured match list. More on the catalog.3
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.1
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +60 more.The fingerprint page shows the full measured match list. More on the catalog.1
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:112+16:0:1460:65535,8:mss,nop,ws,nop,nop,sok:df,id+:03
4:47+17:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
4:46+18:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:ecn:02
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1386:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:ecn:01
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-0-0_1460_63
64240_2-4-8-1-3_1460_72
64240_2-4-8-1-3_1460_102
64240_2-4-8-1-3_1386_101

QUIC transport params

fingerprintco-occurrences
q13_b3b195fe7bab Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, edge 151.0.4129.93, +55 more.The fingerprint page shows the full measured match list. More on the catalog.7
q12_022106b74856 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +30 more.The fingerprint page shows the full measured match list. More on the catalog.5
q12_97eeb91f9c98 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +67 more.The fingerprint page shows the full measured match list. More on the catalog.4

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.369
Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.04
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.04
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.363
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.363
Mozilla/5.0 (X11; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.7339.225 Safari/537.361
curl/8.18.01

Country

fingerprintco-occurrences
IT · Italy12
AT · Austria6
DE · Germany4
DK · Denmark4
BE · Belgium1

Cross-transport links

TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).

fingerprintlinked observations
q13d0311h3_55b375c5d22e_653d80c3fe9d4
t13d1516h2_8daaf6152771_d8a2da3f94cd4
q13d0315h3_55b375c5d22e_dc5437974b472
t13d1617h2_86a278354501_3cbfd9057e0d2
q13d0314h3_55b375c5d22e_61e396c58b1f1
t13d1716h2_5b57614c22b0_0c27189014cf1